Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Entering May, Porters Mill sees a temperature rise, with the average high-temperature advancing from April's moderate 60.3°F (15.7°C) to an agreeable 70.7°F (21.5°C). In May, in Porters Mill, the average low-temperature is a fresh 52.3°F (11.3°C).Humidity
The average relative humidity in May in Porters Mill is 79%.Rainfall
In May, the rain falls for 17 days. Throughout May, 2.6" (66mm) of precipitation is accumulated. Throughout the year, in Porters Mill, there are 146.5 rainfall days, and 27.87" (708mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Porters Mill, the average length of the day in May is 14h and 25min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:25 pm EDT.
Sunshine
The average sunshine in May is 8.4h.UV index
The months with the highest UV index in Porters Mill are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In May, the UV index of 6 transforms into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Porters Mill in May?
What is the average humidity in May in Porters Mill?
How many days does it rain in May in Porters Mill?
When it does not snow in Porters Mill?
Does it snow in Porters Mill in May?
How many hours of daylight does Porters Mill have in May?
When is the sunrise / sunset in May in Porters Mill?
How long on average sun shines in May in Porters Mill?
What is the month with the highest UV index in Porters Mill?
How high is the UV index in May in Porters Mill?
Average temperature in May
Porters Mill, PA
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in May
Porters Mill, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Porters Mill, PA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Porters Mill, PA
- Average humidity in May: 79%
The months with the highest relative humidity are February and October (80%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in May
Porters Mill, PA
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Porters Mill, PA
- Average rainfall days in May: 17 days
The months with the highest number of rainy days are May and July (17 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in May
Porters Mill, PA
- Average snowfall in May: 0"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Porters Mill, PA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Porters Mill, PA
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Porters Mill, PA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in May
Porters Mill, PA
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Porters Mill, PA
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Porters Mill, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Porters Mill, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location